| 摘要 |
PURPOSE:To manufacture efficiently and cheaply a strip material having an excellent heat resistance, chemical resistance, and mechanical strength by cooling the strip material and thereafter rolling it in the range of 1-30% in its thickness reduction rate. CONSTITUTION:A strip material is cooled which obtained by extrude-molding and press-molding thermoplastic resin having a crystal structure. In the next place, the strip material is rolled in the range of 1-30% in its thickness reduction rate and thus a desired article is obtained. In this instance, such thermoplastic resin is a stylene polymer having a syndiotactic structure. |
